A Light Year is a measure of distance. If a star is 61 light years away, then it would take light (or radio waves, which travel at the speed of light) 61 years to get there.
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It means that the light observed from the star today took 61 years to travel from the star to Earth. The distance light travels in one year is roughly 5.88 trillion miles.
The star 61 Cygni B is estimated to have a main sequence lifetime of approximately 10 billion years.
The closest star to Earth at night is the Sun. While we cannot see it at night, it is still the closest star to us in our solar system.
Albireo is the fifth brightest star in the constellation Cygnus.Although it appears to be a single star, it is in fact a binary star system.It is located about 390 light years from us.See related link for more information
It is approx 0.000015 light years.
Lightyears